Streamlining Client Migration to an Ubuntu On-Premise Server

Objective

This guide outlines the necessary steps for migrating to an Ubuntu Pro On-Premise (VSS-PUBLIC) instance from an existing Ubuntu Pro installation, ensuring a seamless transition.

Current Active Services

Pre-requisites

1. To ensure smooth operation, please detach any previously connected virtual machines from Ubuntu Pro. Execute the following commands with administrative privileges:

   pro detach

   output:

   Detach will disable the following services: esm-apps esm-infra landscape livepatch Are you sure? (y/N) y Updating package lists Updating package lists Executing `landscape-config --disable` /etc/landscape/client.conf contains your landscape-client configuration. To re-enable Landscape with the same configuration, run: sudo pro enable landscape --assume-yes

2. Run the command below if the file still exists /etc/apt/auth.conf.d/90ubuntu-advantage

   echo "" > /etc/apt/auth.conf.d/90ubuntu-advantage

3. Run the following command through the vss-cli to present the latest endpoint settings

Steps

1. Configure the Ubuntu Pro Client by editing the contract_url setting in /etc/ubuntu-advantage/uaclient.conf to point to the server:

    

2. Check everything works fine with the following command:

   output:

3. Attach your token:

   output:

    

4. Update the Ubuntu repositories and ensure there are no errors related to the vss-ubuntu-pro repositories:

   output:

5. (optional) If you are running landscape-client, proceed with the following command, otherwise skip

   output:

LivePatch installation

1. Install the following packages in the client

2. Configure the on-prem server

3. Verify configuration

   output:

4. Enable the Livepatch updates with the token

   output:

5. Check status of Ubuntu Pro

   output:

    

6. (Optional) If you are running Landscape, proceed to restart landscape-client, otherwise skip this step.

References

https://ubuntu.com/pro/tutorial

https://ubuntu.com/security/livepatch/docs/livepatch_on_prem/how-to/use_livepatch_client

Revert realtime-kernel example

https://gist.github.com/chaiyujin/c08e59752c3e238ff3b1a5098322b363